Improvement in permutation-locks



" To whom ttf/)my concern i Be it known that I, THEOPHIL iit'ilialglatt-t Leiters Patent No. 95,181, dated September 28, 1,869.

d 'w t IMBROVEMENT 1N' PERMUTATIoN-Locxs.

L' 'The-Schedule referred to in these LetteraPatent and making part ofthe same Us A. AUBERLIN, ofDetroit, in the county of Wayne, andState' ofMichigan, have invented anew and nsefullprovementiu Combination-Locks;and Idodeclare that vthe following is a t true and accurate descriptionthereof, reference being had to theaccompabying drawings, and to theletters of reference marked thereon, and being apart ofthis Figure-1,sheet l, is an" elevation f the interior of the lock., xvith the coverremoved. s

`Figure2 is a horizontal section through the case on thel'ine u' w iniig.- 1, showing a plan of thev mechan- Figure. 3 is a side elevation ofthe 'combinationwheels and tumble1-ph tte,'with avertical 4section ofthebolt; f Figure 4 is a cross-section of the .spindle vand cylinder,showing the washer. Figure 51s a` vertical section of` the cylinder,tumbler-plate, and cap. g i i Figure 6 is an elevation of the knobanddial-plate. Figure 7, sheet 2,` is a vertical. section of the lockVand case, .through the line xa: in'g. 2, withthe tumblers. removed,showingla plan of the oscillating-bolt and changing slide. i

Figure 8 is the Same, on the line g/-y iu fig. 2,.with the slide drawnback, and the tumblers out 4of gear therewith, ready for changing thecombination.

`, Figure 9, is a front elevation of the dog or lever.

Figure 10 is abot-tom plan of the same.

Figure 11 is a horizontal section of 'a tumbler and tumbler-carrier' onthe line z-z in Figure 12, which is a plan of the saine..

Similar letteg's of reference indicate like parts in each figure. l y yThe' nature of this invention relates to animproved construction ofcombinationdoeks, and consists, primarily, in the peculiar arrangementof vthe dogand tumblers on the bolt, which oscillates on a` tubeprojecting inwardly from the front plate of the lock, and

v operated by thespindle, througha series of` peculiar tumblers; and, vi

Secondly, in a novel method of changing the combination, and in thegeneral arrangement of its parts,

as hereinafter more fully shown and set forth.

`In the accompanying drawings- A represents the look-case, cast with acentral inward-projecting cylinder, B, also with a stump, a, on

ja stop, b, inthe front splate of the case, and in its downward movementby a similar stop, b.

The bolt has attached to its inner end an inward- `projectingangularstump, c, and on its upper part a stud, c', on which is sleevedthe dog D, shown in ligs.

9] and 10.

l] is the changing slide, crucii'orm in shape, with an opening in itscent-re, through which passes the cylinderB, and a slot. in' each of itshorizontal arms, through the inner one of which projects the stump c,and through `the outer` a screw, by means of which it is secured to thebolt G, in such a manner that it may slide latfl erally thereon.A c

Under therinner arm of the slide,'the bolt C is provided with a tumbler,d, by means of which, and the .key-stump d on `the bolt, the slide maybe moved laterally, by a proper key, ,inserted from the ba'ck of thelock, turning on said stump, which movement becomes necessary when thecombination is to be changed.

The slide E is also provided with a hollow internallythreaded stud, e,on each vertical arm, ou which are secured, by` proper screws enteringthese studs, the tumbler-carriers F, iig. 12, on `each of which is anannular tumbler, F".

A series of small clamps, f, projecting up from thev circular opening inthe carrier, embraces the bevelled internal edge of the tumbler, andholds it in place against -the carrier, but allows it to rotate freelythere- Y on. Each tumbler has cut inits periphery a slot, g,

`into which the stub, h, of the dog D drops, when all the tumble'rs arein position to th'row the bolt.

An angular recess or notch, t', is also formed in the edge of eachtumbler, at the same place in each, withV relation to the slot g. lVhenthe slide is moved back, carrying with it the tumblers, these recessesembrace the angular stump c, on the bolt, holding the tumblersstationary, disengaged 'from` the combination-wheels, while thecombination is being changed. Each tumbler is also provided with anangular stud, y', for the purpose hereinafter shown. y G are toothedcombination-wheels, usually three in number, revolving ou the cylinderB. They-.are provided with as many teeth as there are numbers on thedial; also, with a'stud, k, projecting through from each side, exceptthat next the front 4plate of the lock, whose stud projects inwardlyonly.

W'hen the lock is set upon a combination, the` stud j of the tumbler isin engagement with the space bctween two of the teeth on thecombination-wheel, but when it is desired to change the combination, thestud is out of gear with the combination-wheel, as shown in fig. 8,allowing the'wheel to 'be revolved, without moving the 'tumblers Thesestuds are so placed in the wheels, that in revolving them, the' stud oneach successively strikes the stud ou the next wheel, and moves thatwheel around with it.

It will be noticed that the cylinder B is provided with an external slotor groove, l, iig. 4.

Between-the first and second, and second and third combination-wheels, aring, m, is placed on the cylinder, to serve as a washer, preventing onewheel tiom communicating motion to the next, except through the studs1;,in the manner described. To preventthe washer from turning, it iscut, and the endsturned into `the 'slot-Z, as shown. A divided'ring ofwire, n, fig. 3,

fitting into a groove around the inner end ofthe cylinder, retains therst wheel in place.

o are washers on the studs e of the slide F, between thetumbler-carriers, to keep the latter in their relative positions, whichare there retained by screws entering the hollow studs. The tumblers andwheels being in place, the dog D is slipped over its stud c', andsecured by a screw entering said stud.

H is a dial-plate, ou the outside of a door, I, and is provided with theusual index or mark, p, from which the combinations are worked.

J is a handle or knob, provided with a graduated dial, q, to the centreof which is secured the spindle K,'which projects thr'ough the cylinderto the interior of the lock. rlhe inner end of the spindle is threaded,and has its extremity flattened on one side, as shown in iig. l.

L is a tumbler-plate, provided with a threaded hub, by means of which itis screwed on the end ofthe spindle. It is also provided on its underside with a stud, o', fig. 3,whieh,when the plate is revolved, comes incontact with the stud k of the tumbler under it, and rotates the latter.It is further provided with a slot in its periphery, into which the stubof the dog D drops, when the slots in the tumblers are in line with saidslot, as shown in iig. l.

The parts being in place, to operate the lock and throw the bolt, turnthe knob to the left until the slots g of the tumblers are under thestub of the dog D, then, by turningr to the right one revolution, theslot in the tumbler-plateL will come under the stub, which will thendrop into all the slots; by turning a little further, the bolt will bethrown up, the end ofthe stub passing under the stump a, is preventedfrom rising out of the slots, while the bolt is being revolved.Reversing the movement, the end of the bolt will strike the stop b;continuing, the under face ofthe stub being bevelled, it will be liftedout of the slot by their square shoulders, when two or three revolutionsof the knob are made, the combination-wheels will be successivelydisarranged.

To change the combination, say from fifty (50) to any desired one ofthree numbers, revolve the knob four times to the left, and stop with 50directly under the mark on the dial-plate, insert the key through thehole in the back-plate, and turn it to the left threequarters of arevolution, which movement will draw back the slide and throw thetumblers out of gear. The lock is now ready to set.

Revolve the dial four (4) times to the left, with the rst selected gureat the mark, then turn to the right three (3) times to your second gure,stopping under the mark; then turn to the left two (2) revolutions,stopping with your third figure under the mark; tum the key to the rightand withdraw it; then move the dial slowly to the right until its blankspace passes nnder the mark, when it will answer the new combination,and-the bolt b e thrown.

To lock it, revolve the knob to the left once or twice. To open orunlock, observe the same rule asin setting the combination, except thatof inserting the key.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is

1. The bolt C, provided with tumbler d, stump c, key-stump d', and studc', on which is sleeved the dog D, arranged and operating iu the mannerand for the purposes set forth.

2. In combination with said bolt, thegslide E, provided with stnds e,substantially as and for the purpose specified.

' 3. 'lhe annular tumblers F', each provided with a slot, g, notch t',and stud j, the tumbler-carriers Fand clamps f, arranged and operatingin the manner and for the purpose set forth.

THEOPHILUS A. AUBERLIN. Titnesscsz J As.vI. DAY, H. F. EBERTs.

